./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/condgf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/condgf.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fc9306c2ddc48de21e392013ec7086bf0d234b29 ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:11:04,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:11:04,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:11:04,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:11:04,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:11:04,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:11:04,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:11:04,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:11:04,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:11:04,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:11:04,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:11:04,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:11:04,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:11:04,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:11:04,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:11:04,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:11:04,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:11:04,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:11:04,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:11:04,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:11:04,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:11:04,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:11:04,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:11:04,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:11:04,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:11:04,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:11:04,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:11:04,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:11:04,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:11:04,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:11:04,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:11:04,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:11:04,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:11:04,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:11:04,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:11:04,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:11:04,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:11:04,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:11:04,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:11:04,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:11:04,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:11:04,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:11:04,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:11:04,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:11:04,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:11:04,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:11:04,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:11:04,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:11:04,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:11:04,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:11:04,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:11:04,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:11:04,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:11:04,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:11:04,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:11:04,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:11:04,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:11:04,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:11:04,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:11:04,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:11:04,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:11:04,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:11:04,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:11:04,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:11:04,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:11:04,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:11:04,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:11:04,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:11:04,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:11:04,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:11:04,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:11:04,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc9306c2ddc48de21e392013ec7086bf0d234b29 [2020-10-19 22:11:04,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:11:04,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:11:04,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:11:04,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:11:04,879 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:11:04,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/condgf.c [2020-10-19 22:11:04,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b17479d/b42ff5de764345468aa4e652910666f0/FLAG66e156621 [2020-10-19 22:11:05,412 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:11:05,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/condgf.c [2020-10-19 22:11:05,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b17479d/b42ff5de764345468aa4e652910666f0/FLAG66e156621 [2020-10-19 22:11:05,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b17479d/b42ff5de764345468aa4e652910666f0 [2020-10-19 22:11:05,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:11:05,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:11:05,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:11:05,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:11:05,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:11:05,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:11:05" (1/1) ... [2020-10-19 22:11:05,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309d7a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:05, skipping insertion in model container [2020-10-19 22:11:05,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:11:05" (1/1) ... [2020-10-19 22:11:05,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:11:05,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:11:06,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:11:06,168 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:11:06,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:11:06,210 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:11:06,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06 WrapperNode [2020-10-19 22:11:06,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:11:06,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:11:06,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:11:06,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:11:06,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:11:06,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:11:06,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:11:06,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:11:06,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... [2020-10-19 22:11:06,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:11:06,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:11:06,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:11:06,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:11:06,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 22:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 22:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:11:06,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:11:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 22:11:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 22:11:06,729 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:11:06,729 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-19 22:11:06,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:11:06 BoogieIcfgContainer [2020-10-19 22:11:06,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:11:06,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:11:06,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:11:06,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:11:06,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:11:05" (1/3) ... [2020-10-19 22:11:06,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4176fe87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:11:06, skipping insertion in model container [2020-10-19 22:11:06,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:11:06" (2/3) ... [2020-10-19 22:11:06,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4176fe87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:11:06, skipping insertion in model container [2020-10-19 22:11:06,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:11:06" (3/3) ... [2020-10-19 22:11:06,740 INFO L111 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-10-19 22:11:06,753 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:11:06,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:11:06,770 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:11:06,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:11:06,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:11:06,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:11:06,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:11:06,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:11:06,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:11:06,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:11:06,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:11:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-19 22:11:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 22:11:06,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:06,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:06,818 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:06,824 INFO L82 PathProgramCache]: Analyzing trace with hash -592817118, now seen corresponding path program 1 times [2020-10-19 22:11:06,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:06,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727502526] [2020-10-19 22:11:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:11:07,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727502526] [2020-10-19 22:11:07,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:11:07,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:11:07,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840322606] [2020-10-19 22:11:07,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-19 22:11:07,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:11:07,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 22:11:07,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 22:11:07,029 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-19 22:11:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:11:07,045 INFO L93 Difference]: Finished difference Result 47 states and 67 transitions. [2020-10-19 22:11:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 22:11:07,047 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-10-19 22:11:07,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:11:07,057 INFO L225 Difference]: With dead ends: 47 [2020-10-19 22:11:07,057 INFO L226 Difference]: Without dead ends: 21 [2020-10-19 22:11:07,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 22:11:07,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-19 22:11:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-19 22:11:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-19 22:11:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-19 22:11:07,090 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-10-19 22:11:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:11:07,090 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-19 22:11:07,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-19 22:11:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-19 22:11:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 22:11:07,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:07,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:07,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:11:07,092 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:07,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:07,092 INFO L82 PathProgramCache]: Analyzing trace with hash 108247460, now seen corresponding path program 1 times [2020-10-19 22:11:07,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:07,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493345611] [2020-10-19 22:11:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:11:07,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493345611] [2020-10-19 22:11:07,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:11:07,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 22:11:07,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792128398] [2020-10-19 22:11:07,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:11:07,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:11:07,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:11:07,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:11:07,185 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 4 states. [2020-10-19 22:11:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:11:07,295 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2020-10-19 22:11:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:11:07,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-19 22:11:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:11:07,297 INFO L225 Difference]: With dead ends: 48 [2020-10-19 22:11:07,298 INFO L226 Difference]: Without dead ends: 34 [2020-10-19 22:11:07,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:11:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-19 22:11:07,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2020-10-19 22:11:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-19 22:11:07,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-10-19 22:11:07,305 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 14 [2020-10-19 22:11:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:11:07,305 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-19 22:11:07,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:11:07,305 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-10-19 22:11:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 22:11:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:07,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:07,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:11:07,307 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1242970242, now seen corresponding path program 1 times [2020-10-19 22:11:07,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:07,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818553872] [2020-10-19 22:11:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:11:07,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818553872] [2020-10-19 22:11:07,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728426499] [2020-10-19 22:11:07,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:11:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:07,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 22:11:07,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:11:08,060 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-19 22:11:08,061 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,070 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 22:11:08,070 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,071 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-10-19 22:11:08,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 22:11:08,106 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-10-19 22:11:08,108 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 22:11:08,128 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,128 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-10-19 22:11:08,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 22:11:08,268 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-10-19 22:11:08,269 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,278 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 22:11:08,281 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-19 22:11:08,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:23 [2020-10-19 22:11:08,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 22:11:08,379 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-10-19 22:11:08,381 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 22:11:08,389 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 22:11:08,390 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:7 [2020-10-19 22:11:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:11:08,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:11:08,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-10-19 22:11:08,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169345568] [2020-10-19 22:11:08,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-19 22:11:08,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:11:08,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 22:11:08,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-10-19 22:11:08,424 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 17 states. [2020-10-19 22:11:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:11:09,086 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2020-10-19 22:11:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 22:11:09,087 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2020-10-19 22:11:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:11:09,090 INFO L225 Difference]: With dead ends: 57 [2020-10-19 22:11:09,090 INFO L226 Difference]: Without dead ends: 47 [2020-10-19 22:11:09,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2020-10-19 22:11:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-19 22:11:09,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2020-10-19 22:11:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-19 22:11:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-10-19 22:11:09,101 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 21 [2020-10-19 22:11:09,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:11:09,102 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-10-19 22:11:09,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-19 22:11:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-10-19 22:11:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 22:11:09,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:09,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:09,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:11:09,318 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash 532037120, now seen corresponding path program 1 times [2020-10-19 22:11:09,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:09,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461850752] [2020-10-19 22:11:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:11:09,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:11:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:11:09,384 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:11:09,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:11:09,407 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:11:09,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:11:09,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:11:09 BoogieIcfgContainer [2020-10-19 22:11:09,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:11:09,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:11:09,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:11:09,452 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:11:09,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:11:06" (3/4) ... [2020-10-19 22:11:09,455 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 22:11:09,523 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:11:09,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:11:09,525 INFO L168 Benchmark]: Toolchain (without parser) took 3686.89 ms. Allocated memory was 35.7 MB in the beginning and 61.3 MB in the end (delta: 25.7 MB). Free memory was 9.4 MB in the beginning and 28.5 MB in the end (delta: -19.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,526 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 35.1 MB. Free memory was 14.2 MB in the beginning and 14.2 MB in the end (delta: 47.2 kB). Peak memory consumption was 47.2 kB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.67 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 8.5 MB in the beginning and 26.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.97 ms. Allocated memory is still 44.6 MB. Free memory was 26.3 MB in the beginning and 24.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,528 INFO L168 Benchmark]: Boogie Preprocessor took 34.06 ms. Allocated memory is still 44.6 MB. Free memory was 24.5 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,529 INFO L168 Benchmark]: RCFGBuilder took 442.16 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 22.8 MB in the beginning and 20.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,530 INFO L168 Benchmark]: TraceAbstraction took 2718.04 ms. Allocated memory was 47.7 MB in the beginning and 61.3 MB in the end (delta: 13.6 MB). Free memory was 20.4 MB in the beginning and 31.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,531 INFO L168 Benchmark]: Witness Printer took 72.52 ms. Allocated memory is still 61.3 MB. Free memory was 31.9 MB in the beginning and 28.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:09,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 35.1 MB. Free memory was 14.2 MB in the beginning and 14.2 MB in the end (delta: 47.2 kB). Peak memory consumption was 47.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 365.67 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 8.5 MB in the beginning and 26.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 42.97 ms. Allocated memory is still 44.6 MB. Free memory was 26.3 MB in the beginning and 24.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 34.06 ms. Allocated memory is still 44.6 MB. Free memory was 24.5 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 442.16 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 22.8 MB in the beginning and 20.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2718.04 ms. Allocated memory was 47.7 MB in the beginning and 61.3 MB in the end (delta: 13.6 MB). Free memory was 20.4 MB in the beginning and 31.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Witness Printer took 72.52 ms. Allocated memory is still 61.3 MB. Free memory was 31.9 MB in the beginning and 28.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i